Well I feel a lot of predictors of longevity are millennials, because 1. a lot of wealthy tech geeks are millennials, and wealthy people, especially males, are more likely to seek immortality 2. the current prediction of the arrival of anti-aging is mostly around or before the 2070s, which is around the time most millennials are about to die naturally, and this makes the whole prediction look like another example of the Maes–Garreau law.